CVE-2025-21988

In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024	Patch
https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e	Patch
https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-04-02 13:15

Updated : 2025-11-04 18:56

NVD link : CVE-2025-21988

Mitre link : CVE-2025-21988

CVE.ORG link : CVE-2025-21988

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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